-start getting into the points/miles game now. it will give you baller credit and let you travel the world in first class for free for the rest of your life.
-if you are smarter than everyone make sure they know it but make sure they don't know you are making sure they know it.
-save money for retirement but spend a lot now on things you love. you can do amazing things in the prime of your life or you can sit on some money when you are old and can no longer do those things no matter how much money you saved.
-leaving a shitload of money for your kids isn't doing them any favors and they won't remember you more fondly for it.
-student loans are one of the greatest government benefits there are. use them. working 40 hours a week while going to school is never a better idea than working 10 and having a small amount of 1.6% long term debt at graduation.
-don't feel like you have to have kids just because the dickwad next door has 7. he's lying to you. he doesn't want to spend 100% of his free time at baseball games.
-but, if you want kids have them. they seem pretty great in certain situations.
-if you're feeling down just hop on an airplane and get out for a day or two.
-carry on whenever possible. usually if you think it's not possible it actually is.
-don't buy garbage, you get more than what you pay for in almost all instances. find the very best of what you are looking to buy and then find the best price for it.
-owning X really high quality Ys is better than owning >X medium quality Ys. (the number and the item aren't important and can be changed to anything).
-relationships are pretty easy, I can't provide much advice there. nature v. nurture or whatever.
-don't stay somewhere cheap because it's just a bed.
-gamble, but don't be a dumbass. it's not an investment.
-try all the less scary drugs at least once. don't do it, like, a ton though.